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To delete the nth node from the end in a linked list, we can use a two-pointer approach.
Use two pointers, one to traverse the list and another to keep track of the nth node from the end.
Move the second pointer n steps ahead of the first pointer.
When the second pointer reaches the end of the list, the first pointer will be at the nth node from the end.
Adjust the pointers to delete the nth node.
I applied via Recruitment Consulltant and was interviewed before Jan 2023. There were 2 interview rounds.
Program to check if a number is a palindrome.
Convert the number to a string to easily check for palindrome
Reverse the string and compare it with the original string
If they are the same, the number is a palindrome
Hooks are a feature in React that allow you to use state and other React features in functional components.
Hooks were introduced in React 16.8.
They allow you to use state and other React features without writing a class.
Commonly used hooks include useState, useEffect, useContext, and useReducer.
Hooks must be used at the top level of your functional component.
Example: const [count, setCount] = useState(0);
Design a high-level architecture for a software system
Identify the main components of the system
Define the interactions between the components
Consider scalability, security, and performance
Choose appropriate technologies and frameworks
Create a diagram to visualize the architecture
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Designing Facebook involves creating a social networking platform with features like user profiles, news feed, messaging, and more.
Create a user registration and login system
Develop a news feed algorithm to display relevant content
Implement a messaging system for users to communicate
Design a user profile page with customizable options
Incorporate features like groups, events, and pages
Ensure scalability and security of ...
Reverse a linked list
Iterative approach using three pointers
Recursive approach with base case and recursive call
In-place reversal using stack
I applied via Company Website and was interviewed in Apr 2021. There were 3 interview rounds.
I applied via LinkedIn and was interviewed before Mar 2023. There were 3 interview rounds.
DSA medium leetcode questions - easy to solve
DSA medium 2 questions and core questions 1.5 hrs
I applied via Company Website and was interviewed before Oct 2023. There was 1 interview round.
Increasing triple subsequence, rest is easy hashmap
I appeared for an interview before Sep 2023.
I appeared for an interview before Jun 2024, where I was asked the following questions.
Classes are reference types; structs are value types. Classes support inheritance, while structs are more lightweight and efficient.
Classes support inheritance, allowing for polymorphism.
Structs are value types, meaning they are copied on assignment.
Classes are reference types, meaning they are accessed via references.
Structs are generally more memory efficient for small data structures.
Example: class Person { string N...
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